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Old 01-03-2013, 02:06 AM   #21
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ChemE, you should stick with SI or US units
Meh, I'm more comfortable with grams than ounces for expressing small masses that's why I mix units freely. Also, chemical engineers tend to get pretty comfortable with both metric and Imperial. Point well taken though, I know some aren't comfortable converting between the two. Interesting about the trub though. Obviously my simple initial experiment didn't have any break material to confound the result.
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Old 01-03-2013, 03:17 AM   #22
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The missed mars once b/c of mixing unit systems

I'm obviously not as tied to the imperial system but I see that it works pretty well for most things here in the US.

Brewer's Friend has hop absorption set to 5 ml/g I don't know where this number came from and it may also be for pellet hops.

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Old 01-03-2013, 06:18 AM   #23
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Inspired partly by this thread, I got roughly 4:1 the one time I weighed with pellet hops. This was assuming a 5G paint strainer bag weighed nothing and absorbed no water, which I suppose could be considered a source of error. Since the dry weight of the hops was 6oz, I didn't feel that weighing the bag would greatly change the results.

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Old 01-04-2013, 12:33 PM   #24
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Quote:
Originally Posted by Kaiser View Post
The missed mars once b/c of mixing unit systems

I'm obviously not as tied to the imperial system but I see that it works pretty well for most things here in the US.

Brewer's Friend has hop absorption set to 5 ml/g I don't know where this number came from and it may also be for pellet hops.

Kai
Yup, that was a classic engineering blunder to be sure! BIG difference between m/s and ft/s when it comes to landing on the surface of a planet!

So 5 ml/g wort/beer absorption translates into 4.8 fluid ounces per ounce of hops. My initial result was 4.68 fluid ounces per ounce of hops. I would call that some pretty darn good agreement.
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My Super Efficient 5-Gallon Mash Lauter TunGraduating CarboysLeaf Hop Absorption Measured
Primary - Bemused Bitter, Munich Saaz SMaSH
Secondary - Air
Bottled - Oatmeal Stout 2011, Apfelwein, Withdrawn Wheat, Bourbon Barrel Barleywine SMaSH, Christmas Ale 2010, Perplexed Pale Ale
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Old 01-04-2013, 05:44 PM   #25
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I didn't realize that a fl oz of water doesn't weight an oz.

Let's abandon the use Imperial measurements for any scientific work right here

Kai

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Old 01-04-2013, 09:15 PM   #26
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Quote:
Originally Posted by Kaiser View Post
I didn't realize that a fl oz of water doesn't weight an oz.

Let's abandon the use Imperial measurements for any scientific work right here

Kai
Indeed. A fluid ounce is 29.5735 mL and an ounce is 28.375 g.
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My Super Efficient 5-Gallon Mash Lauter TunGraduating CarboysLeaf Hop Absorption Measured
Primary - Bemused Bitter, Munich Saaz SMaSH
Secondary - Air
Bottled - Oatmeal Stout 2011, Apfelwein, Withdrawn Wheat, Bourbon Barrel Barleywine SMaSH, Christmas Ale 2010, Perplexed Pale Ale
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